Oxygen scavenger system
Because of the corrosive nature of oil-field brines, and most particularly aerated oil-field brines, to economically produce oil by waterflooding, it is necessary to prevent or reduce corrosion since corrosion increases the cost by making it necessary to repair and replace such equipment at frequent intervals. A composition suitable as an oxygen scavenger is characterized as a solution of salts of a carbonyl (such as an aldehyde and/or a ketone) bisulfite addition product containing minor amounts of a transition metal, such as a metal of the Iron Period of the Periodic Table, i.e., iron, cobalt, nickel, but most preferably cobalt. The oxygen scavenger may be employed to inhibit corrosion particularly in oil-well waterflooding processes. (13 claims)
- Assignee:
- Petrolite Corp.
- Patent Number(s):
- US 3625888
- OSTI ID:
- 6217872
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ADDITIVES
BRINES
CARBONYLS
COBALT COMPOUNDS
CORROSION INHIBITORS
CORROSION PROTECTION
ELEMENTS
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
IRON COMPOUNDS
NICKEL COMPOUNDS
NONMETALS
OIL WELLS
OXYGEN
OXYGEN COMPOUNDS
PETROLEUM
RECOVERY
SCAVENGING
STIMULATION
SULFITES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WATER TREATMENT
WATERFLOODING
WELL STIMULATION
WELLS